Sobre la interpretación de Virgilio, Aen. IV. 110 - 112 y las Interpretationes Vergilianae de Tiberio Claudio Donato.

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Dido: Historia de un abandono.

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Teócrito (<i>Idilios</i> 13 y 22), Apolonio de Rodas (II, 282-283), Propercio I, 20: una contaminación

Este artículo analiza la contaminación que de los idilios 13 y 22 de Teócrito y de los versos II 282-283 del poema de Apolonio de Rodas realiza Propercio en su elegía I, 20.This article is concerned with the study of the influence of Theocntus Idylls 13 and 22 and of Apollonius Rhodius Poem on Propertíus elegy 1, 20.Centro de Estudios de Lenguas Clásicas. Area Filología Grieg

La autobiografia poética: un subgénero épico poco estudiada Principio y final.

El presente artículo estudia la autobiografia poética de Cicerón como primer cultivador del subgénero y la de Paulino de Peía como último. Se muestra cómo el poema de Cicerón es recogido por Virgilio y cómo Paulino de Peía es influido por el de Mantua y por las Confesiones de Agustín

Dido y Ariadna en la poesía española de siglo XIX.

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Effects of TiO2 Nanoparticles Incorporation into Cells of Tomato Roots

In this study, tomato plants were grown in vitro with and without incorporation of TiO2 nanoparticles in Murashige and Skoog (MS) growth medium. The aim of this study was to describe the morphological (area and roundness cell) and mechanical (Young’s Modulus) change in the different tissue of tomato root, epidermis (Ep), parenchyma (Pa), and vascular bundles (Vb), when the whole plant was exposed to TiO2 nanoparticles (TiO2 NPs). light microscopy (LM), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and atomic force microscopy (AFM), wavelength dispersive X-ray fluorescence (WDXRF) techniques were used to identify changes into the root cells when TiO2 NPs were incorporated. TiO2 NPs incorporation produces changes in the area, roundness, and Young’s Modulus of the tomato root. When tomato root is exposed to TiO2 NPs, the Ep and Vb area size decreases from 260.92 µm2 to 160.71 µm2 and, 103.08 µm2 to 52.13 µm2, respectively, compared with the control area, while in Pa tissue the area size was increased considerably from 337.72 mm2 to 892.96 mm2. Cellular roundness was evident in tomato root that was exposed to TiO2 NPs in the Ep (0.49 to 0.67), Pa (0.63 to 0.79), and Vb (0.76 to 0.71) area zones. Young’s Modulus in Pa zone showed a rigid mechanical behavior when tomato root is exposed to TiO2 NPs (0.48 to 4.98 MPa control and TiO2 NPs, respectively). Meanwhile, Ep and Vb were softer than the control sample (13.9 to 1.06 MPa and 6.37 to 4.41 MPa respectively). This means that the Pa zone was stiffer than Ep and Vb when the root is exposed to TiO2 NPs. Furthermore, TiO2 NPs were internalized in the root tissue of tomato, accumulating mainly in the cell wall and intercellular spaces, with a wide distribution throughout the tissue, as seen in TEM